How do you solve log3x=9? Precalculus Properties of Logarithmic Functions Logarithm-- Inverse of an Exponential Function 1 Answer anor277 Oct 24, 2016 x=39 Explanation: When I write logab=c, I ask to what power I raise the base a tp get b; here ac=b. By way of example, log10100=2, i.e. 102=100,103=1000etc. Given that log3x=9, then x=39, whatever this is it is large! Answer link Related questions What is a logarithm? What are common mistakes students make with logarithms? How can a logarithmic equation be solved by graphing? How can I calculate a logarithm without a calculator? How can logarithms be used to solve exponential equations? How do logarithmic functions work? What is the logarithm of a negative number? What is the logarithm of zero? How do I find the logarithm log14164? How do I find the logarithm log23(827)? See all questions in Logarithm-- Inverse of an Exponential Function Impact of this question 2101 views around the world You can reuse this answer Creative Commons License